Shuttle-throwing device



. 1,641,882 Sept 1927' c. c. FARWELL SHUTTLE THROWING DEVICE Filed July 20, 1926 2 Sheets-Sheet l WITNESSES lNVENTOR- zm 1 BY W ATTORNEYS C. C. FARWELL SHUTTLE THROWING DEVICE' Sept. 6,1927. I .882

Fild July 20. 1926 2 Sheets-Sheet 2 WXTTJLM Q?- INVENTOR C. C, Farwell BY i ATTORNEYS Patented Sept. 6, 192 7.

ATENT OFFICE.

cminm MAN F-ARWELIJ,

or eno'ron, mssacnusnr'rs.

snu'r'rnn-rnnowme nnvrcn.

Application med 1.1mm. Serial I'm-128,740.

This invention relates to shuttle throwing devices and has for an object provlde anelectrically operated construction wherem the parts are somade that the shock of the loom will be readily taken Another object of the inventlon 1s to provide a solenoid actuated core and associated parts for throwing a shuttle, the structure being such that the rapid motion of the core is checked at a desired time and'the blow cushioned.

Another object of the provided in an electrically invention is to operated shuttle throwing mechanism ,means for normally using a binder in connection w th a shuttle and a magnet for moving the binder out of functioning position.

An additional object is to provide 1n an electrically operated shuttle throwing device means for turning ofi the current whenever the loom is stopped and for automatically turning on the current when the loom is started.

Inthe accompanying drawings- Figure 1 is a diagram with certam parts in elevation and certain in section dlSClOS- ing an embodiment of the inventlon.

Figure 2 is an enlarged vertical sectional view through part of a lay, the solenoid and associated parts illustrating certam features of the invention.

Figure 3 .is a top plan view of the struc-, ture shown in Figure 2.

Figure 4 is a sectional ure 2 on line 4-4.

Figure 5 is a fragmentary longitudinal sectional view through a loom showing the lay and certain associated parts.

Referring by numerals, 1 indicates the frame of a loom and 2 the lay which is of usual construction and operated in the usual manner. -.In the accompanying drawings the invention has been applied to the under surface of the lay 2 but under some circumstances,'as

view through Figfor instance, with box looms, the solenoid *and certain other parts would be laced on the side of-the lay. As indicated in Figure 1,'there is provided solenoids 3 and 4 arranged adjacent the respective ends of the lay 2 so'as to throw the shuttle back and forth as the loom operates. As these are of identical construction, the description of one will apply to both.

In Flgures 2 to 4 inclusive, the solenoid 3 and associated parts have been shown in to the accompanying drawings detail. Referring as these figures it in be noted that the solenoid 3.is provided with an iron casing v5 makin the solenoid what;

is known as an iron cla solenoid. In order to assist the return of the flux, a short core ii is provided and extends a short distance into one end of the solenoid and is held in pos1t1on by a spring 7. The power core 8 1s adapted to be drawn into the solenoid and checked in its movement by the core 6-and sprmg 7. It will be noted that core 6 hel complete the path for the flux whereby t8:

'core\8 may more quickly move andat the same tiine the spring? acts to cushion and slow down the motionof the core 8. Suit- I able guides 9 are connected with thec'ore 8 in any desired manner, said guides acting to guide the power core 8 in its reci rocatory motion and also acting to gui e the arm 10 secured substantially centrally to the core 8 extending in one direction through a suitable slot 11 in lay 2 and in the oppo-. site direction to a point where it is secured to the rod 12. Rod 12 is "ded by the bracket 13 and is surrounde by a spring 14 which acts to normally return the parts to the position shown in Figure 2. Arm 10 isprovided with a striking end 15 adapted to engage and strike the end of the shuttle 16 for throwing the same. The shuttle 16 1s normally held against movement by the binder 17 which is a flat metal spring connected at 18 to an upstanding flange or plate 19 connected with the lay 2. As the b nder or spring 17 is free atone emf it will yield as theshuttle 16 moves into engagement with the head 15 and will act to clamp or bind the shuttle in this position. In order to relieve this clamping or bindin action at the time that the arm 10 functions for throwing the shuttle, the electroma et"20 is energized and ulls the binder 1 away source of current and how the current is turned on and oil to the respective solenoids and. magnets. At the right of Figure 1 will be seen a section 1' forming'part of the frame 1 and this section carries insulating supports 21 and 22 which are of identical construction except that one is as sociated with solenoid 3'and' the other with solenoid 4. In view of this fact the description of one will apply to both. Member 21 is provided with movable contacts 23 and 24 normally held apart by the spring 25 actlng on the stop 25 rigidly secured to contact 24. Contact 24 at the outer end is rovided with a rounded knob 26 insulated rom the contact 24 and normally in the path of move-' ment of the projection or cam 27 carried bythe gear wheel 28. Contact 23 is normally held in the position shown in Figure 1 by a spring 29, said spring acting agalnst the stop 30 rigidly secured to the contact-23. The "ear wheel 28 continually meshes with the pinion 31 rigidly secured to the shaft 32, which shaft drives the la 2 whereby the cam 27 is properly time for closing the circuit at point 33 and also at point 34. When the circuit is closed at point 33, current will flow from the source 35 through wire 36, switch 37, wire 38, wire 39, magnet 20, wire 40, solenoid 3, wire 41, contact 23, contact 24, wire 42 and through wire 43 back to the source. The switch 37 is associated with a shipper handle 44 which is used for starting and stopping the loom. When the ship er handle 44 is in the osition shown in *igure 1, the loom has een sto ped and power drawn off. When it is desired to throw the power on and start the loom, shipper handle 44 is moved to the left in Figure 1 until it is almost vertical. This will start the loom and at the same time the contact 37 will be moved over for closing the switch 37. When the shipper handle 44 is moved for stopping the loom, the spring 37 will move contact 37 so as to open the switch 37 automatically. When the cam 27 engages the knob 26, the circuit will be closed for solenoid 4 and its co-acting magnet 20. It will be understood that as the gear wheel 28 rotates, the knobs 26 and 26 will be alternately engaged and the contacts associated therewith caused to alternately function whereby the'shuttle will be thrown back and forth in the usual manner.

What I claim is:

1. A shuttle throwing device including a solenoid, a core ada ted to be attracted by the solenoid, means For retracting said core, an arm connected with the core for engaging and throwing a shuttle, a binder for normally holding the shuttle against movement until said arm functions and an electromagnetic member acting on said binder for pulling the same away from the shuttle substantially at the same time as said arm starts to function.

2. A shuttle throwing device including a solenoid, a core adapted to be attracted b the solenoid, means acting as an iron shel for the solenoid, an auxiliary core arranged at one end of the solenoid, a spring for re siliently holding the auxiliary core in the solenoid whereby when the first mentioned core is attracted by the solenoid it will strike the auxiliary core and move the same against the action of said spring, an arm connected with said core for actuating a shuttle, and means for returning said coreafter each actuation.

3. A shuttle throwing device including an electrically operated shuttle throwing arm, a resilient binder for normally holding the shuttle against movement, 'and electrically operated magnet for pulling the binder away from the shuttle as the shuttle begins to move.

4. A shuttle throwing mechanism including a pair of solenoids, a core associated with each of said solenoids, an arm connected with each of said cores for engaging and throwing the shuttle along the lay, means for returning said arms and cores after each operation, an electric circuit for each of said solenoids, said electric circuits including a source of power for supplying current to the res ective solenoids, a start ing switch manual y actuated and a pair of contacts acting as an auxiliary switch, means for normally keeping said contacts spaced apart, a cam for actuating one of the contacts for closing the circuit at that point, and means connected with the loom for causing said cam to function at the proper time for throwing the shuttle.

5. In an electrically operated shuttle throwing mechanism, two sets of contacts acting as electric switches, each set including a pair of reci rocable contact pins, springs for normally liolding said pins in a given position, which position involves a separation thereof, a cam for successively operating one pin of each set for bringing the pins together, a gear wheel for actuating said cam, and means connected to the loom carrying the shuttle for operating the gear wheel in proper time for causing the shuttles to be thrown at the proper time.

6. A shuttle throwing device including a solenoid, a core adapted to be attracted by the solenoid, a resilient cushion arranged at one end of the solenoid whereb when said core is attracted b' the solenoid it will strike said resilient cus ionv and move the same until the momentum of the core has been checked, an arm connected with said core for actuating a shuttle, and means for returnin said core after each actuation.

cfiAUnE CHAPMAN FARWELL. 

